Floor drain



FIG. 1 is a side perspective of a floor drain showing the new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a section view taken along the line 9-9 of FIG. 7.

CLAIM The ornamental design for floor drain, as shown and described.